Documentation

Output is the convolution of signal ain and the impulse response
contained in ifilcod. If more than one output signal is supplied,
each will be convolved with the same impulse response. Note that
it is considerably more efficient to use one instance of the
operator when processing a mono input to create stereo, or quad,
outputs.

Low latency multichannel convolution, using a function table as
impulse response source. The algorithm is to split the impulse
response to partitions of length determined by the iplen
parameter, and delay and mix partitions so that the original,
full length impulse response is reconstructed without gaps. The
output delay (latency) is iplen samples, and does not depend on
the control rate, unlike in the case of other convolve opcodes.